Reversing mechanism for washing machines



D. H. BENJAMIN.

REVERSING MECHANISM FOR WASHING MACHINES.

APPLICATION FILED OCT. 6. 19x9.

D. H. BENJAMIN.

. REVERSING MECHANISM FOR WASHING MACHINES.

APPLICATION FILED OCT. 6| I919.

Patented Jan. W, 1922.

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D. H. BENJAMIN.

REVERSING MECHANISM FOR WASHING MACHINES.

' APPLICATION HLED OCT. 6. 919.

1,41:@3,850 Patented Jan. W, 19225,

5 SHEETS-SHEET 3- D. H. BENJAMIN.

REVERSING MECHANISM FOR WASHING MACHINES.

' APPLICATION FILED 0616,1919.

1AL385 Patented. Jan. 1 922.,v

5 SHEETS-S 4.

I D. H. BENJAMIN. REVERSING MECHANISM FOR WASHING MACHINES.

APPLICATION FILED OCT. 61 I9'I9.

Patented Jan. III, 1922,

' 5 SHEETS-SHEET 5- III/1.71

a re um s:

EMA H.- BENJAEEIN, 0F CLEVELAND HEIGHTS, OHIO, ASSIG-NOJR- T0 a or n tFTP; a a e it m it rrnnnrn'rra o.

BEITJATEEN, OF CLEVELAND HEIGHTS, OHIO.

REVERSINCT MECHANISM VJASHIIQ'G MACHINES.

Application filed October 6, 1919; Serial No. 328,873.

T 0 all whom it may concern:

l e it irnown that l, BENJAMIN, a citizen of the United States, residingat Cleveland Heights, in the county of Guyahoga and State of Ohio, haveinvented certain new and useful Improvements in lieversing l iiechanismfor Washing lviachines, of which the following is a specincation.

This invention relates to reversing mecha nism nd particularly to thattype of such various other types of mechanism but the resent inventionrelates particularly to ype of gearing wherein two oppositely h'venmembers or gears are coupled or connected to drums on the main drivenshaft by brake bands controlled automatically f lrom the gearing itself,all of the parts being arranged in such manner that when the drivenmembers or gears are in motion the cylinder will receive its propernumber of rotations in each direction and will be started in eachdirection with ease and without shock.

Further features of the invention will more fully and at large appearfrom the following description, drawings, and claims.

Referring to the drawings Fig. 1 is a side elevation of a washingmachine provided with my improved gearing; Fig. 2 is an end elevationfrom the right in Fig. 1; Fig. 3 is an enlarged vertical sectional viewon the line 3 3, Fig. 2, showing parts in section and in elevation; F eis a section taken upon the line Fig. 3 looking to the left; Fig. 5 is asectional view taken upon the line 5-5, Fig. 3, also looking to theleft, parts being omitted for clearness of illustration; Fig. 6 is asectional view taken substantially upon the line 66,Fig. 2: Fig. '7 is adetailsection on the line 77, Fig. and Fig. 8 is a detail View,corresponding to Fig. 5 and showing another position of the parts.

In the drawings, lrepresents a suitable tub or casing supported on legs2 and provided at one end with a bearing member 3 having a f-shapednotch l therein for receiving a trunnion of the cylinder, as willappear. at the opposite endof' the tub or casing'l is a bearing 5secured to thetub and provided with a recess 6 for reception of asuitable packing adapted to bear against a main tub operating shaft 7which projects into the tub and is provided with a driving head 8 havingoppositely extending arms each provided with a socket These sock etsreceive plugs 10 secured to a driving member 11 secured the head of theWasher cylinder 12. The opposite head of the cylinder is provided withthe trunnion member 13 provided with a trunnion 14 adapted to engage inthe socket l. The cylindrical wall 15 of the washer is perforated as isusual in machines of this type, there being only a few of theperforations shown.

It will be seen from the foregoing that the washer cylinder is supportedat both ends and may be driven by means of the shaft 7. Secured to theend wall of the tub or cas g ji by means of a flange 16 is a gear casingi he flange 16 provides a bearlng for the 7, as shown in F 3, andanother bearing l8is provided for the outer end of said shaft in thecover 19 of said gear casing.

Secured to the shaft 7 within the casing 17 are drum hubs 20 and 21supporting cylindrical drums 22 and 23 respectively. These drums areengaged by suitable bands which are automatically operated to drive theshaft 7 in opposite directions, as will fully appear. I

ldotatably mounted upon the hub 20 is a drum driving gear 2 which isprovided with a shaft 25 preferably mounted in a suitable bearingforming a part of one of the spokes and located near the periphery ofthe gear. This shaft 25 is provided with a band operating lever 26having a pair of spaced'arms 27 extending in one direction from theshaft and a pair 28 extending in the opposite direction, the formerbeing pivotally connected to a band pull rod 29 and the latter beingconnected to a pull rod 30. The pull rod 29 extends through a block 31pivotally mounted in cars 32 secured to one end of the band 33. On therod 29 is an adjustable nut 35 for regulating the pressure of acompression spring 3% which transmits yielding pull of the rod 29 to theband member 24 but at a slower rate.

The pull rod in like manner passes through a block 36 pivotally mountedin ears 37 formed on the opposite end of the band 33. A pressure spring38 and adjusting nut 39 are also provided forr'od .30. "W hen the shaft25 is rotated in the clockwise direction, as shown in Fig. 7, the band33* wi'll'be tightened upon'the flange of drum 22 and the gear 24 will.be coupled to drive the washer cylinder in one direction.

Secured to the shaft 25 on the opposite side-ofthe gear 24 is anoperating lever 40 provided with a stop portion 41 adapted forengagement with a pin 42 carried by the gear to limit the movement ofthe lever. Theinner end .of the lever 40 extends toward the shaft 7 andis provided with a friction roller 43 adapted for engagement with a camflange'44 secured to the side of a cam gear 45 loosely mounted upon theshaft 7.-

two arms and 56 secured by bolts 57 inan'extension 58 of the gearcasing, as shown clearly in Figs. 3 and 4. As the gear 48 rollsplanetwise around the stationary gear 49 it causes gear 45 and the cam44 to rotate around shaft 7 in the same direction as This differentialmovement between members :24 and 45 causes member 24 to overtake member'45 by a complete revolution in a given number of revolutions of member24 depending upon the relative sizes of the planetary gears, as will bereadily understood;

When the gear 24 is rotated the band operating mechanism is carriedbodily around by it and while the roller 43 moves along the cam flange44 the band 33 is tightened, this effect continuing during a number ofrev0- lutions of the gear 24 depending upon the J length of flange 44and the relation othe l'ElCe.

planetary gears, as before stated. the band wheel is rigidly secured tothe shaft 7 the washer cylinder will also be driven. The cam flange 44is substantially of the form shown in Fig. 5, is less than a semi-circlein extent and is provided with a downwardlyextending portion 59adapted"for elevating the roller 43 ontotheconcen trio or main portion of theflange. The opposite end of the'fiange is provided with a curved portion60 which forms a quick re lease for the lever 40. Springs 4O tend torelease the band 33 and swing the lever 40 inwardly toward the camflange. v r A similar set of gears and earns is provided for the drum orband wheel 23 except that the cam-44 of this set isso located j tive,etc. The gears 24 are identical, as be fore stated, but they are drivenin opposite directions and the mechanism performing this function willnow be described.

Referring to Fig. 6, it will be seen that the two gears 24 mesh withpinions 61 and 62 the former being mounted upon a shaft 63 supported inthe bearing 54 of the bracket 52 and in a bearing 64 formed in the cover19 opposite to. the extension 58 of the gear casing;

The pinion 62 is wider than the gear 24, is mounted upon a short shaft65 supported in the bearing 53 and meshes with a pinion 66 keyed to theshaft 63. The shaft 63 extends beyond the bearing 64 through a clutchhousing 67 formed on the cover plate 19 and into a bearing 68 providedupon a clutch housing cover 69. Within the clutch housing thus formedthe shaft 63 is provided with clutch member 70 loosely splined upon theshaft 63 and adapted to be actuated by a yoke 7lengaging the peripheralgroove 72 of the clutch member. i'This clutch member'is provided with asocket 73 adapted to receive the pin 74' slidably mounted in a drivinggear 75, and yield ingly heldin an outward position by; a

spring '76.

fThe driving gear 75 is loosely mounted upon the shaft 63, is held inplace by a collar 77 and is driven by a driving pinion 7 8 operated froma suitable motor 79. The yoke 71 forms part of an'operating lever .80which extends out to a. convenient point for operation. It will be seenfrom the foregoing mechanism that the two gears 24 are driven inopposite. direction and that the power may be applied as desired by theclutch. y I Each gear 24 ispreferabIy provided, with a counterweight24diametrically opposite to the shaft '25 and associated parts,,althoughthis is not essential. L

What I claim is 1. In combination, an operating shaft, and

driving means there-for, comprlslng a drum connected thereto, a brakeband arranged to frlctionally seize said drum, means. for r0- tatingsaid band to drive the-drum, and au-.

of the drum for actuating said band to seize and release'the drum. f V

2. In a washing machinev reversing mechanism, the combination, of anoperating shaft, and driving means therefor, compris mg a drum connectedthereto, a brake band arranged to frictionally seize said drum,

tomatio means governed by the rotation of v the band and independentlyof the rotation" raoaaee means for rotating said band to drive the drum,a movable member for actuating said band to seize and release the drum,and an operating cam over which said member travels.

3. In a washing machine reversing mecha nism, the combination of anoperating shaft, and driving means therefor, comprising a drum connectedthereto, a brake band arranged to frictionally seize said drum, meansfor rotating said band to drive the drum, a movable member for actuatingsaid band to seize and release the drum, an operating cam over whichsaid member travels, and means for rotating said cam in the samedirectton as said band.

a. In a washing machine reversing mechanism, the combination of anoperating shaft, and driving means therefor, comprising a drum connectedthereto, a brake band arranged to frictionally seize said drum. meansfor rotating said band to drive the drum, a movable member for actuatingsaid band to seize and release the drum, an operating cam over whichsaid member travels, and means for rotating said cam in the samedirection as said band at a different rate of speed.

5. In a washing machine reversing mechanism, the combination of anoperating shaft, and driving means therefor, comprising a drum connectedthereto, a brake band arranged to frictionally seize said drum, meansfor rotating said band to drive the drum, a movable member for actuatingsaid band to seize and release the drum, an operating cam over whichsaid member travels, and planetary gearing for producing differentialrotation of said band and cam.

6. In combination, an operating shaft, and

reversing mechanism therefor, comprising a pair of drums connected tosaid shaft, a brake band for each drum, means for rotating said bands inopposite directions, and means for alternately operating said bands toseize the drums.

7. In combination, an operating shaft, and reversing mechanism therefor,comprising a pair of drums connected to said shaft, a brake band foreach drum, means for rotating said bands in opposite directions, and twocams, one for operating each band.

8. In. combination, an operating shaft, and reversing mechanismtherefor, comprising a pair of drums connected to said shaft, a brakeband for each drum, means for rotating said bands in oppositedirections, two

cams, one for operating each band, and means for rotating each cam withits respective brake band.

9. In combination, an operating shaft, and reversing mechanism therefor,comprising a pair of drums connected to said shaft, a brake band foreach drum, means for rotat' ing said bands in opposite directions, twocams, one for operating each band, and means for rotating each cam withits respective brake band, but at a difierent rate of speed.

10. In combination, an operating shaft, and reversing mechanismtherefor, comprising a pair of drums connected to said shaft, a brakeband for each drum, means for rotating said bands in oppositedirections, two cams, one for operating each band, and planetary gearingoperated by rotation of said bands for also rotating said cams.

In testimony whereof I aflix my signature.

DANA II. BENJAMIN.

